If this is your first visit, be sure to
check out the FAQ by clicking the
link above. You may have to register
before you can post: click the register link above to proceed. To start viewing messages,
select the forum that you want to visit from the selection below.

Radeon VM, DMA-BUF Will Go Into Linux 3.3 Kernel

01-06-2012, 01:10 PM

Phoronix: Radeon VM, DMA-BUF Will Go Into Linux 3.3 Kernel

The Radeon virtual memory (VM) support -- part of the Radeon HD 7000 series upbringing -- is now in the DRM next tree for landing in the Linux 3.3 kernel. Separate from the expected 3.3 graphics pull request, Linaro's "dma-buf" has already been sent to Linus Torvalds for merging into the mainline tree...

The Radeon virtual memory (VM) support -- part of the Radeon HD 7000 series upbringing -- is now in the DRM next tree for landing in the Linux 3.3 kernel. Separate from the expected 3.3 graphics pull request, Linaro's "dma-buf" has already been sent to Linus Torvalds for merging into the mainline tree...

If I'm reading all of the mailing list messages correctly, this is the buffer sharing support that will eventually be needed for sharing/transferring buffers between separate hardware drivers, which could have direct applications with things like Optimus and crossfire-like setups.

Comment

Ah I love these previews. Watering my mouth for the next kernel.
Yeah that buffer sharing sounds kinda neat. I guess that would also work then between completely different GPUs, a constellation you might find on a bunch of machines.

On the legal review side on radeons I wish we would soon have a real utilization of the UVD ASICs.